Count Up and Down

Videos solutions to help Grade 2 students learn how to count up and down between 100 and 220 using ones and tens.

Common Core Standards: 2.NBT.2, 2.NBT.1

New York State Common Core Math Module 3, Grade 2, Lesson 2

NYS Math Grade 2, Module 3, Lesson 2

Lesson 2 Homework

1. How many in all?
   _____ ones = _____ tens
   _____ stars in all.
2. These are bundles with 10 sticks in each.
   a. How many tens are there? ______
   b. How many hundreds? ______
   c. How many sticks are there in all? ______
3. Sally did some counting. Look at her work. Explain why you think Sally counted this way.
   177, 178, 179, 180, 190, 200, 210, 211, 212, 213, 214
4. Show a way to count from 68 to 130 using tens and ones. Explain why you chose to count this way.

Lesson 2 Homework

5. Draw and solve.
   In her classroom, Sally made 17 bundles of 10 straws. How many straws did she bundle in all?

Draw, label, and box 85. Draw pictures of the units you use to count from 85 to 120.

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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